How Far Can I Go?

I've been thinking about this for months, experimenting with different positions while masturbating (lying on my back, sitting, standing, watching myself in mirrors) and studying the effects of self-stimulation for different time periods. I can cum in less than five minutes, or I can prolong stimulation for two hours. My record for length of time is three about hours. The volume of semen can vary from less than 2 milliliters to more than 15, depending on the interval between masturbations, but also depending on factors like the intensity of stimulation, fantasies, whether I find just the right porn to watch while stroking, and more. I know I'm very lucky to produce unusually large volumes of semen. Women have commented on it, both with compliments and with complaints, whether I've cum inside them, or on their abdomens, breasts, or (very rarely) faces. Today I wanted to measure how far I could shoot streams of semen, and how many spurts of cum would come. It hds been three days since I allowed myself to masturbate at all. During the last few minutes of work, I started stimulating my cock very gently thinking about exactly what I would do when I got home. In the men's bathroom, I peed and then stroked to a very nice hard 6.5 inches while standing at the urinal. Then I made myself stop, zipped up my trousers leaving my cock outside my briefs (but inside my chinos) leaving my erection pointing upward. I spent several seconds very lightly stroking through my clothes, noticing that the erect shaft was very visible through the light weight cotton fabric, and I could see the corona and the head of my cock through the fabric. I fantasized about jerking off to a cum, releasing my load into the front of my pants and walking out with the semen stain and odor very obviously visible. But I'm not into getting fired for something like that, and besides I wanted to save the main event for my apartment. As I walked out of the office my erection shrank down somewhat, but I knew that a few drops of pre-cum could stain my front if I didn't move quickly, and a few people might realize I had an erection. But having an erection in a public place isn't always preventable is it? It's a private matter, right? Walking across the parking lot, I refreshed my erection by a few subtle strokes, almost accidental brushes. I was fully erect again by the time I got into my car. It was very difficult to control myself during the thirty minute drive to my apartment, but it was great fun to drive and very occasionally stroke the underside of my cock. I didn't let my penis out of my trousers, because past experience told me that if I did that, I couldn't prevent myself from fully stroking while driving. How I wanted to beat off right there in the car, and cum all over the steering wheel and the dashboard - drive home with semen all over the place, its sharp smell biting into the air! In the apartment I set up my experiment in front of a full length mirror in the bedroom - good lighting, a four foot length of dark cloth on the floor between myself and the mirror. I stripped naked and admired myself at all angles in the mirror, watching as my penis pulsated, first slightly below horizontal, then "level", and finally angled upward. I very slowly and very lightly stroked the length of my cock at various speeds, using only thumb and forefinger. I think it must have measured over seven inches in length by then. I could feel the cum wanting to arrive, so I stopped and held the base of my penis between thumb (on top) and two fingers underneath. After a minute or so I could resume stimulation, but I only allowed myself to shake the cock rapidly. That shaking is excellent stimulation, and can be continued almost as long as you like, without an accidental cum. I turned to the internet, brought up by a computer and displayed on a 40 inch TV monitor on the floor beside the mirror, and brought up some porn. I knelt down facing the mirror, my thighs spread at about a forty five degree angle. I brought up three different porn channels at the same time, using three different internet "pages" on the computer, so I could flip between them. Watching the porn, I masturbated using several different techniques, but only using my hands. I'm not a user of electronics to masturbate (except for the internet porn). I love watching myself jerk off. In the beginning I spent many minutes just holding the base of my erect cock, shaking at various speeds while watching other people masturbate to orgasms. That's an excellent way to prolong a masturbation session. Eventually I allowed myself to stroke the shaft, near the base at first, and then the full length as the stimulation got more intense. The head of my cock was bulging and shiny, a purple color from the trapped blood. Pre-cum began to ooze, but I wiped it away. I prefer to masturbate dry, using the very lightest touch to my skin. I watched several different types of porn - a little BDSM, some facials including a couple in which the women masturbated to orgasm while receiving several loads of semen on their faces, a couple of gokkun clips - but 90% of it was female masturbation to orgasm - older women, middle aged women, some striking young women. I am always amazed and grateful that so many good looking women are willing to make videos of themselves as they masturbate and have orgasms. With the large TV monitor just a few feet from me, it's almost as stimulating as having the women right there in the room with me, masturbating as they watch me strain to avoid a too-early cum. I edged for a long time, alternating shaking the cock, stroking, watching the erection strain. I occasionally took my hand away from the cock, noticing it sticking straight out, and then angle upwards when stimulation was most intense. I got very close to cumming several times, almost lost it accidentally a couple of times, saved it by clamping down hard at the base of my cock. After almost an hour of watching and intermittent stroking of my continually stiff penis, I suddenly realized I'd gone over the edge and wouldn't be able to prevent the cum. Frantically, I stroked myself stroke the entire length of my shaft using my whole left hand (I am a left handed masturbator), stroking so rapidly that my hand was a blur. At the last moment I leaned forward slightly, then straightened up as I watched the first blast of semen burst out onto the black cloth. I kept stroking rapidly. That first spurt went most of the way down the four foot length of the cloth - but the second spurt went the whole four feet, and at least one bit of it hit the bottom of the mirror. A third and a fourth spurt went almost as far. There were three more spurts, smaller ones, the first two somewhere between the full four feet and maybe three feet in length, but with parts of them landing closer to me. A fifth spurt was much shorter, but I liked the volume of it. The cloth was a mess of course, the mass semen very obvious to see against the black background. I love seeing the mess. While I didn't have a chance to measure the volume of ejaculate this time, I'm pretty sure it had to be over 15 milliliters, maybe more than 20 milliliters. It was an unusually complete release. I folded up the cloth, to be washed and used for a future experiment, cleaned myself up, slipped on a clean pair of scrubs, and popped a beer our of the frig. It was a very good day.